Who are IDEX competitors?

Could you please elaborate on who the main competitors of IDEX are in the cryptocurrency exchange market? Are there any other decentralized exchanges that offer similar features and services as IDEX, or are there centralized exchanges that pose a significant threat to its market position? Additionally, how does IDEX differentiate itself from its competitors in terms of user experience, trading fees, and the variety of digital assets it supports? Understanding the competitive landscape is crucial for investors and traders alike, so any insights you can provide would be greatly appreciated.